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Amphibians are ectothermic, anamniotic, four-limbed vertebrate animals that constitute the class Amphibia. In its broadest sense, it is a paraphyletic group encompassing all tetrapods excluding the amniotes (tetrapods with an amniotic membrane , such as modern reptiles , birds and mammals ).
File-Class amphibian and reptile articles of NA-importance (81 P) Pages in category "File-Class amphibian and reptile pages" The following 81 pages are in this category, out of 81 total.
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AmphibiaWeb's goal is to provide a single page for every species of amphibian in the world so research scientists, citizen scientists and conservationists can collaborate. [1] It added its 7000th animal in 2012, a glass frog from Peru. [2] [3] As of 2022, it hosted more than 8,400 species located worldwide. [4] [5]
Print/export Download as PDF; Printable version; In other projects ... Pages in category "Amphibian stubs" The following 41 pages are in this category, out of 41 ...
Adults are 2.5 to 4 inches (6.4 to 10.2 cm) long and colored green, brown or olive. Rana palustris: Pickerel frog: Adults are 2 to 3 inches (5.1 to 7.6 cm) long and colored green or brown with dark square spots. Rana pipiens: Northern leopard frog: Adults are 2 to 3.5 inches (5.1 to 8.9 cm) and colored green or brown with dark round spots.
Amphibian Species of the World 6.2: An Online Reference (ASW) is a herpetology database. It lists the names of frogs, salamanders and other amphibians , which scientists first described each species and what year, and the animal's known range.